CAS 4654-26-6 is a non ortho benzene environmentally friendly main plasticizer for di (2-ethylhexyl) phthalate (DOTP), with the molecular formula C ₂ ₄ H ∝₈ O ₄. It is widely used in PVC cable materials, films, and rubber products.

Core Information
-Chinese name: Di-n-octyl terephthalate (alias: Di-n-octyl terephthalate)
-English name: Dictyl terephthalate (DOTP)
-CAS number: 4654-26-6
-Molecular formula: C ₂₄ H ∝₈ O ₄
-Molecular weight: 390.56
-Appearance: Colorless or slightly yellow transparent oily liquid, insoluble in water
-Main application: Polyvinyl chloride (PVC) main plasticizer, especially suitable for heat-resistant cable materials above 70 ℃, artificial leather, automotive interior and synthetic rubber softener

Key physical and chemical properties
-Density: Approximately 0.981-0.986 g/cm ³ (20 ℃)
-Melting point: 41-42 ℃; Freezing point: approximately -48 ℃ to -50 ℃
-Flash point: ≥ 210 ℃; Boiling point: about 400 ℃ (0.8 kPa)
-Electrical insulation: High volume resistance coefficient (about 4.6 × 10 ¹¹Ω· cm), superior to traditional DOP
-Safety: Does not contain phthalates, complies with the EU REACH regulation, low toxicity (LD ₅₀>5000 mg/kg)

Main features and application advantages
1. Environmental compliance: Non ortho benzene structure, unrestricted by the use of ortho benzene plasticizers, an ideal alternative to DOP.
2. Heat and cold resistance: low volatility, good pull-out resistance, maintaining the flexibility and electrical stability of the product over a wide temperature range.
3. Application areas: Mainly used for temperature resistant cable sheaths, soft PVC films, synthetic leather, automotive interior parts, synthetic rubber softeners, and coating additives.

*Note: Attention should be paid to distinguishing between CAS 4654-26-6 (n-octyl terephthalate) and CAS 6422-86-2 (di (2-ethylhexyl) terephthalate, also commonly known commercially as DOTP). The two have slightly different structures but similar uses, with the former being straight chain octyl terephthalate*

Products :

CAS 4654-26-6, Dioctyl terephthalate (DOTP), C24H38O4
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